GrUmPyBoDgEr wrote:elansprint71 wrote:GrUmPyBoDgEr wrote:I hope that the 4th, 6th confusion doesn't happen on down changes?
That can push an engine well over its safe rev limit & cause valves to make freinds with pistons.
John
Would that situation not require a 7th gear?
6th down to 4th?
John,
Surely you know that on a standard 6 speed gate that to get straight to 4th from 6th you would have to be short shifting ( up to neutral and back down to 4th) 6th to 3rd would be a much more plausible mistake and far more interesting regarding the social life of the valves and pistons.
Bob, As Roger mentions at the top of this page, your rev limiter won't stop a mechanical over rev such as John is describing, I would have thought 5,500 rpm was a little on the low side in any case, I remember the noise as intoxicating when my twinc approached 6500, a quite safe rev limit for a well maintained engine.
I share Pete's view regarding the roll out and publicity of the 6 speed gearbox, why aren't they releasing more information? It surely can't be because they are trying to protect their idea, the market for this sort of thing is too small to worry about if a few people make copies in their garage or shed, if it's a well built and engineered product at a sensible price then most people will buy from them rather than risk bodging something up themselves. The only person I know who has a home brewed 6 speed MX5 gearbox in his car is Tony Penzoti ( Elan BDG ) who personally engineered his own solution, but it took many many hours of work to get right.
Regards